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This article discusses a study of ion-exchange resins at Du Pont's Savannah River plant - anionresins, in particular, because of their shorter lives and high unit costs. Efforts to improve the deionization process included: in-service evaluation of various resin types;

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1.1 This test method provides a general estimate of the organic fouling of an anion exchange resin based upon total organic carbon measurements.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This

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of a polymeric strong anion exchange resin retained by a porous filter. The column reservoir will hold approx. 4ml of sample. The waste cup has a capacity of approx. 6ml and is used to collect liquid (normally waste) passed through the column when the rotor is spinning in a clockwise

Description:
a review on the advanced technologies for the treatment of arsenic-contaminated soils and water. Treatment methods such as oxidation, anion exchange, membrane separation, and adsorption/precipitation have been developed to remove arsenic from drinking water or groundwater. However, further

Description:
AMBERLITE™ IRN317 resin is a stoichiometric equivalent mixed bed of gel strong acid cation resin in the Li7 form and gel strong base anionresin in the OH form. This resin is for enhanced performance and long resin life in the Chemical and Volume

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AMBERLITE™ IRN78 is a uniform particle size strongly basic gel type anion exchange resin supplied in the hydroxide form. It is processed to the highest purity standards required for treating water in the nuclear power industry.

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Portable Exchange Deionization resins reduce both positively and negatively charged ions for a consistent flow of high-quality water. These cation and anion exchange resins have a specific capacity to reduce a known amount of ions and need to be regenerated once the capacity of

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deposition in turbines. Early detection of trace contamination is enabled with minimal operator supervision.
Applications
Ultrapure water monitoring at ppb silica levels. Silica breakthrough of polisher anionresin is detected at very low ppb levels and contaminated water can be

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salt consumption and brine waste.
Unlike conventional ion exchange resins, which are either cation or anion exchangers, these resins are amphoteric. Each resin bead has both cation and anion exchange groups. After the resin becomes loaded, the calcium and

Description:
consumption and brine waste.
Unlike conventional ion exchange resins, which are either cation or anion exchangers, these resins are amphoteric. Each resin bead has both cation and anion exchange groups. After the resin becomes loaded, the calcium and

Description:
The Recoflo® Water Demineralizer is able to produce higher purity water without the need of a mixed bed polisher. In many cases, it is able to produce water with a conductivity as low as 0.1 microseimens/cm with less than 0.010 mg/L of silica using only the cation and anion beds.
This

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tank The very small amounts of cations and anions that are still in the water are then completely removed by passage of it through the TOC tested, high-purity resins in the ion exchange cartridge. Irradiation with UV light (UPW version only) eliminates any bacteria or germs that are

Description:
In many cases, Eco-Tec's Demineralizers are able to produce water with a conductivity as low as 0.1 microseimens/cm with less than 0.010 mg/L of silica using only the cation and anion beds. This high level of performance is made possible by the rapid and efficient exchange kinetics resulting

Description:
AXEON Deionization Systems contain a high quality resin made from Gel Poly Styrene crosslinked with DVB resin mixture to meet the most demanding water conditions. These systems are designed for maximum performance with a minimal amount of maintenance and comply with all industry

Miles Scientific (Analtech)XTRX Extraction Columns
. iChromatograph/Analtech Inc. is launching the series with Type AX and Type AX/S columns which contain a nominal 120 mg of a polymeric strong anion exchange resin retained by a porous filter. Analtech General Manager Steven C. Miles said the company will soon add standard SPICE packings as well as offering customers the opportunity to supply their own resins and packings. "Over the past few months we've been talking with some of our customers about the possibility of offering this new product line...
(read more)Browse Solid Phase Extraction Cartridges and Disks Datasheets for Miles Scientific (Analtech)

was having a negative effect on the anion bed life. They investigated ways to remove this high amount of alkalinity from the system. After evaluating all of the options, City Public Service made the decision to put in a membrane degassing system between the cation and anion beds to remove the free carbon

with a conventional sodium cycle water softener - deaerator pretreatment. Annual chemical savings are over $76,000 and "cycle-up" energy savings are over $15,000 savings using a dealkalizer with chloride form anion ion exchange resin. Reductions in condensate piping replacements can add further cost savings

The process involved the use of a commercial
weak anion resin (Duolite A7) as selective sorbent for the ferric species and a weak
cationic resin with carboxylate functionality (Purolite C106) for the lead species
[157].

The use of strong-base anion (SBA) exchange resins for nitrate removal is a fairly recent application of IX for drinking water treatment (Clifford and Weber, 1978; Guter, 1981), although anion resins have been used in water demineralization for more than 50 …